1205a Consultation Decision Analytic Protocol (DAP) to guide the assessment of a review of Medicarefunded wrist surgery services September 2012 Table of Contents MSAC and PASC ........................................................................................................................ 3 Purpose of this document ........................................................................................................... 3 Purpose of application ............................................................................................................. 4 Intervention ............................................................................................................................. 4 Description................................................................................................................................. 4 Fractures of the distal radius, the distal ulna and the ulna styloid .................................................. 6 Administration, dose, frequency of administration, duration of treatment ....................................... 7 Co-administered interventions ..................................................................................................... 8 Background .............................................................................................................................. 9 Current arrangements for public reimbursement........................................................................... 9 Regulatory status ..................................................................................................................... 10 Patient population ..................................................................................................................10 Proposed MBS listing ................................................................................................................ 10 Clinical place for proposed intervention ...................................................................................... 12 Clinical management algorithm ................................................................................................. 13 Comparator ............................................................................................................................17 Clinical claim ..........................................................................................................................18 Outcomes and health care resources affected by introduction of proposed intervention ..............................................................................................................19 Outcomes ................................................................................................................................ 19 Health care resources ............................................................................................................... 20 Proposed structure of economic evaluation (decision-analytic) ...........................................24 Clinical research questions for public funding: ............................................................................ 26 Clinical research questions for wrist fractures, no reduction .................................... 26 Clinical research questions for wrist fractures, closed reduction .............................. 26 Clinical research questions for wrist fractures, open reduction ................................ 27 Decision analytic diagram ......................................................................................................... 27 References .............................................................................................................................28 Appendix 1: Information from the MBS .................................................................................29 Appendix 2: Information from the AIHW ..............................................................................35 2 Items for public consultation Items specifically identified for public consultation appear in the relevant sections of the DAP. These are shown by way of highlighted, italic text. MSAC and PASC The Medical Services Advisory Committee (MSAC) is an independent expert committee appointed by the Australian Government Health Minister to strengthen the role of evidence in health financing decisions in Australia. MSAC advises the Commonwealth Minister for Health and Ageing on the evidence relating to the safety, effectiveness, and cost-effectiveness of new and existing medical technologies and procedures and under what circumstances public funding should be supported. The Protocol Advisory Sub-Committee (PASC) is a standing sub-committee of MSAC. Its primary objective is the determination of protocols to guide clinical and economic assessments of medical interventions proposed for public funding. Purpose of this document This document is intended to provide a draft decision analytic protocol that will be used to guide the assessment of an intervention for a particular population of patients. The draft protocol will be finalised after inviting relevant stakeholders to provide input to the protocol. The final protocol will provide the basis for the assessment of the intervention. The protocol guiding the assessment of the health intervention has been developed using the widely accepted “PICO” approach. The PICO approach involves a clear articulation of the following aspects of the research question that the assessment is intended to answer: Patients – specification of the characteristics of the patients in whom the intervention is to be considered for use; Intervention – specification of the proposed intervention Comparator – specification of the therapy most likely to be replaced by the proposed intervention Outcomes – specification of the health outcomes and the healthcare resources likely to be affected by the introduction of the proposed intervention 3 Purpose of application A proposal for an application requesting a review of Medicare-funded wrist services was received from The Australian Hand Surgery Society by the Department of Health and Ageing in January 2012. Services for wrist fractures are currently reimbursed through the MBS via a range of items (MBS items 47360-47375). This proposal relates to a review of current wrist fracture MBS items, and a proposal for five new items, to align Medicare-funded wrist therapeutic surgical procedures more closely with current clinical practice. These items would be used in a broad patient population, although it is suggested that the population to benefit most would be the younger and middle-aged who are subject to high-energy trauma and intra-articular fracture. This decision analytical protocol has been drafted to guide the assessment of the safety, effectiveness and cost-effectiveness of Medicare-funded wrist services in order to inform MSAC’s decision-making regarding public funding of the interventions. This is the first of six reviews from the Australian Hand Society. Intervention Description Figure 1: The anatomy of the wrist and hand (Diagram © Egton Medical Information Systems Ltd 2012, as distributed at http://www.patient.co.uk/health/Scaphoid-Fracture.htm, used with permission.) 4 The wrist is a complex joint which is required to be both strong and flexible. It is composed of the distal ends of the radius and ulna, eight carpal bones, and the proximal bases of the five metacarpal bones (Kijima and Viegas 2009). As shown in Figure 1, there are eight carpal bones arranged in two rows. The radiocarpal joint is the joint between the scaphoid lunate and the distal radius. The ‘wrist’ joint is a composite joint requiring complex interactions between all of the component bones. The distal radius and ulna are covered in articular cartilage and meet at the distal radioulnar joint (DRUJ). At the distal end of the ulna is a styloid process which provides attachment to the ulnocarpal ligaments and the radioulnar ligaments. The stability of the wrist is dependent upon a number of ligaments. The extrinsic ligaments connect the distal radius and ulna to the carpal bones, while the intrinsic ligaments have their origins and insertions into the carpal bones (Kijima and Viegas 2009). Wrist fractures are usually defined as occurring in the distal radius within three centimetres of the radiocarpal joint, where the lower end of the radius articulates with two (the lunate and the scaphoid) of the eight bones forming the carpus (Handoll 2008) and the distal ulna. Fractures of the ulna can also occur. The majority of wrist injuries are closed injuries, the external skin remaining intact (Handoll et al 2008). Wrist fractures may be intra-articular (where the articular surface is disrupted) or extra-articular. Due to the intricate three-dimensional anatomy of the hand, and the multiple bones and surfaces which may be involved, together with potential soft tissue injury, wrist fractures may be complex in nature. In the past, surgeons have classified fractures based on clinical appearance, and named after those who first described them. Some common eponymous naming conventions include (Abraham and Scott 2010): Colles’ fracture: may demonstrate a dinner-fork deformity, commonly seen as a result of a fall on an outstretched hand, involving the fracture of the distal radial metaphysis and can be associated with a fracture of the ulnar styloid. Smith’s (or reverse Colles’) fracture: a transverse fracture of the metaphysis of the distal radius following a fall on the upper surface of the hand. Barton’s fracture: a distal radius fracture with dislocation of the radiocarpal joint, usually as a result of a high-energy impact to the radiocarpal joint. Hutchison’s fracture: caused by a direct fall on the radial side of the wrist causing a fracture through the radial styloid process. The introduction of X-rays and other more detailed imaging methods has made it clear that classical deformity can be associated with a range of fracture patterns. As a result, a range of newer classification systems have been developed (Handoll et al 2008). In the short-term, fractures of the wrist may be associated with swelling and pain, with possible neurovascular complications, vasomotor instability and significant intra-articular and extra-articular injury. Late complications include midcarpal instability (dynamic instability resulting from malaligned bones in the midcarpal joint within the wrist) (Handoll et al 2008). Post-traumatic arthritis may occur, months to years from the injury. Treatment of a wrist fracture is dependent upon whether the bone fragments have become displaced. Fracture reduction is the alignment of displaced bony fragments. The wrist may then be immobilised 5 usually in a plaster cast. The basic treatment options available for fracture repair are conservative (non-operative), where reduction of the displaced fracture is via manipulation, and subsequent stabilisation in a plaster cast or other external brace; or a range of operative or open techniques (Handoll and Madhok 2008). Specifically: closed (with traction and manipulation) or open (including arthroscopically-assisted) reduction if the bone fragments are displaced (percutaneous Kirschner wires (K-wires) could be used to move the bony fragments into place); external splintage: immobilisation or support, or both (plaster of Paris cast, brace, bandage); external fixation using percutaneous pins or wires fixed externally with plaster or use of another external frame (as an aid to closed reduction); percutaneous pinning; bridging fixation (pins are placed further from the more fragile end of the fractured bone with external component bridges and immobilises the wrist joint); internal fixation with pins, nails, screws and plates; internal fixation and external fixation can be applied together for stabilisation of a very complex and unstable fracture; however, the quality of current internal fixation devices mean this is becoming less common; replacement of lost bone stock (metaphyseal defect) by temporary bone scaffold (bone graft) material or any other suitable substance (bone cement or substitute); immobilisation (approximately 6 weeks), followed by rehabilitation Ligament injuries are common with intra-articular fractures and would need to be repaired in addition to the fracture. In the case of articular fractures, a displacement of less than 2mm is normally treated conservatively, whilst a dislocation of greater than 2mm is a commonly accepted indication for surgery (Schmittenbecher 2005). Clinical judgement is required at all times. Exercises and other physical interventions are used to help restore function and speed up recovery (Handoll et al 2006). Fractures of the distal radius, the distal ulna and the ulna styloid The distal radius and distal ulna are covered in articular cartilage and play a role in smooth forearm rotation. An intra-articular fracture here requires an increased level of skill and difficulty to repair compared to a fracture elsewhere in the radius or ulna. The ulna styloid is not intra-articular but is part of the distal ulna and is the attachment for multiple ligaments that support and restrain the movement of the DRUJ required for forearm stability and forearm rotation. It also contains ligaments that help support the ulnar side of the wrist joint. Repair of ulnar styloid fractures are very different to fractures of the distal ulna as they involve joint stability. Where there is no instability repair of the ulna styloid is relatively straight forward and is used to prevent pain from a non-united fracture. Repair of an ulna styloid fracture where there is instability of the DRUJ is a much more complex issue with a longer rehabilitation equivalent to that seen with a full reconstruction of the DRUJ. Compared to fractures elsewhere at the radius and ulna, intra-articular fractures of the distal radius and distal ulna require more detailed imaging, more accurate bone re-alignment and reduction, the 6 use of intra-operative radiology, and a greater requirement for internal fixation. Rehabilitation may also be more complex. In current clinical practice the management of undisplaced stable fractures are the same, whether they are intra-articular or extra-articular. Therefore closed reduction and cast immobilization for intraand extra-articular fractures are very similar in practice. The main difference for intra-articular fractures would be the addition of a CT scan to accurately assess the suitability of the fracture for closed reduction and more frequent radiological assessment to ensure that the reduction is maintained during the healing period. No additional training is required for most of these fractures beyond normal continuing medical education and attendance at clinical meetings. Newer approved implants are used for the fixation with newer surgical techniques. A number of workshops are provided by the implant distributors with instruction from experienced surgeons. The practice would need to have access to imaging services such as computed tomography (CT), magnetic resonance imaging (MRI) and intra-operative X-ray. Administration, dose, frequency of administration, duration of treatment Wrist services are likely to be administered once per event due to bone damage as a result of injury or trauma. The procedure undertaken would reflect the location and complexity of the fracture. Simpler fractures which are non-articular could be treated with closed reduction (if required) and cast immobilisation by general practitioners (GPs) in an out-of-hospital setting. This may be more common in rural settings. More complex procedures, including fractures in an intra-articular location, would be performed in the operating theatre of a specialised practice by hand or orthopaedic surgeons with a particular expertise in the treatment of fractures of this type. This is the same as for current fracture management. A narrative detailing the provision of a complex wrist fracture repair by a specialist surgeon is provided below. Prior to the fracture service delivery an initial consultation where the interview is performed assessing the mechanism of injury, basic health issues and suitability for the proposed treatment. An initial Xray would usually be undertaken where the need for further detailed investigation is determined. This initial consultation would take 15-20 minutes. If a CT scan were to be provided at the time of the consultation this would allow a further assessment of the finer details of the fracture (additional 15 minutes consultation time). If a CT scan needs to be arranged at another time then an additional consultation of 15-20 minutes will be required. Once a decision to operate has been made then the full service is discussed including an outline of the procedure, postoperative course, possible risks and complications and expected outcome. Time taken for a surgical procedure has a wide variation depending on the experience of the surgeon and the support team, the complexity of the fracture and unpredictable variables in reassembling a complex 3 dimensional puzzle. This procedure requires hospital admission with an overnight stay, either general or regional anaesthesia depending on the anaesthetic assessment. The procedure may require one or two different surgical approaches with the possibility of biological or synthetic bone grafting. The total surgical time would range from 90-120 minutes. The surgical procedure requires a surgical exposure, either a dorsal or volar approach or separate radial or ulnar approaches or 7 combinations, with dissection of tissues to expose the bone and fracture. Vital nerves, vessels and tendons need to be protected throughout the exposure. The fracture is identified and the joint surface exposed without excessive soft tissue dissection which would devascularise the fragments. Preliminary fixation may be required with temporary wire fixation or the application of an external fixateur. This initial fixation is then checked with X-ray. Once satisfactory position is achieved then the definitive fixation of the fracture is applied with the number and configuration of plates and screws determined by the fracture anatomy. When the fracture is stabilised, further assessment is performed with X-rays. At times an arthroscopic assessment of the joint surface is needed. Once the fracture is satisfactorily stabilised, any associated ligamentous and soft tissue injuries are addressed. The wound is closed, and dressings and splint immobilisation is applied. Aftercare would involve a number of stages. The patient is reviewed in the immediate post-operative period to look for possible immediate complications such as bleeding, nerve injury and compartment syndromes (10 minutes). The patient is then reviewed in the hospital the following morning for assessment of pain relief, any complications and suitability for discharge. The results of the procedure are again explained to the patient along with their pain relief and what to look out for if complications develop. Two weeks after discharge, the patient is reviewed, sutures are removed and the wound is checked. If the fracture was deemed stable at the time of surgery then the patient would start a program of graded mobilisation. If it was determined that further supplementary support was needed then a splint or cast would be applied (15 – 20 minutes). Following this the patient would usually be seen at the six week mark where X-rays would be used to determine the union of the fracture and to assessed mobilisation. Subsequent consultation to assess progress and modify treatment and therapy would occur over the next three months or so. The total time involved from initial meeting to discharge excluding complications and additional non-standard treatments would be in the range of 6 - 7 hours. Co-administered interventions The co-administered interventions for fractures of the wrist will vary depending on the type, location and complexity of the fracture. Simple fractures may require no, or closed, reduction, and will heal successfully with cast immobilisation and little or no additional rehabilitation. More complex fractures (intra-articular or comminuted fractures) will require additional intervention. Due to the need for very accurate reconstitution of the joint surface there is an increasing use of intra-operative radiology and image intensification. Radiology is most commonly used in the initial imaging of a suspected fracture. In the case of a more complex fracture, more detailed imaging can be achieved using CT, or using MRI for suspected soft tissue injury. Intra-operative X-ray is used during the open procedure to establish correct alignment during pre- or final fixation of the bone fragments. Peri-operative radiology may also be used for closed reduction to assess the accuracy of the reduction once the cast is applied. At times an arthroscopic assessment of the joint surface is needed. Physiotherapy is required for the recovery of wrist function. 8 Background Current arrangements for public reimbursement The current MBS item numbers cover the treatment but do not explicitly cover detail of the ulna, or of any intra-articular fractures of the radius and ulna. They also do not cover current clinical practice including the use of new terminology and newer fracture management techniques and technologies, or more detailed imaging requirements. Current MBS items related to wrist surgery are shown in Table 1. Specifically, items 47360 to 47375 cover the proposed medical service. Currently, fracture management of the wrist can be undertaken in both public and private hospitals and out of hospital (which attracts a 75% rebate). MBS items 47360, 47369 and to a lesser extent 47363 (reflecting cast immobilisation of the distal radius or ulna, with or without closed reduction) have consistently been provided mainly by GPs and largely out of hospital over the past 5 years. The age and gender distribution of the services provided under current MBS items are shown in Appendix 1 (Figure 3 to Figure 8). For certain items (47360, 47363, 47369), the majority of the services are provided to the 5-14 age group, with a small increase in older people aged 55 years or greater. For item number 47375, the number of services increase with age, with the majority of services provided to females in the 55-64 age group. Table 1: Current MBS item descriptors for therapeutic procedures on wrist fractures MBS item MBS listing Number MBS claims (Jun 2010 – Jul 2011)a 47360 RADIUS OR ULNA, distal end of, treatment of fracture of, by cast immobilisation, not being a service to which item 47363 or 47366 applies Multiple Services Rule (Anaes.) Fee: $129.40 Benefit: 75% = $97.05 85% = $110.00 13,100 47363 RADIUS OR ULNA, distal end of, treatment of fracture of, by closed reduction Multiple Services Rule (Anaes.) Fee: $193.90 Benefit: 75% = $145.45 85% = $164.85 1,027 47366 RADIUS OR ULNA, distal end of, treatment of fracture of, by open reduction Multiple Services Rule (Anaes.) (Assist.) Fee: $258.70 Benefit: 75% = $194.05 85% = $219.90 180 47369 RADIUS, distal end of, treatment of Colles', Smith's or Barton's fracture of, by cast immobilisation, not being a service to which item 47372 or 47375 applies Multiple Services Rule (Anaes.) Fee: $166.35 Benefit: 75% = $124.80 85% = $141.40 2,335 47372 RADIUS, distal end of, treatment of Colles', Smith's or Barton's fracture, by closed reduction Multiple Services Rule (Anaes.) Fee: $277.10 Benefit: 75% = $207.85 85% = $235.55 1,398 47375 RADIUS, distal end of, treatment of Colles', Smith's or Barton's fracture of, by open reduction Multiple Services Rule (Anaes.) (Assist.) Fee: $369.55 Benefit: 75% = $277.20 2,857 MBS: Medicare Benefits Schedule a Claims data retrieved June 26 2012 from: https://www.medicareaustralia.gov.au/statistics/mbs_item.shtml Current MBS items for bone grafting (47726 and 47729) and for wrist ligament repair or DRUJ reconstruction (46345) are shown in Appendix 1. Depending on the extent of the injury, these items may need to be used in addition to the items for bone fixation. However, this DAP is focussed on the fracture repair of wrist bones. Synthetic bone substitutes would be injected at the site at the time of 9 surgery and would therefore be covered within existing or proposed MBS items for bone fracture repair. In certain instances, removal of the implant used for fracture fixation is necessary as they can impinge on tendon or joint movement. The current MBS item for this service is 47930. Note that the MBS items for treating a child’s fracture of the distal radius (50508, 50512, see Appendix 1) are not part of the proposed changes. Regulatory status The applicant has advised that there is no new technology associated with the proposed assessment. The proposed medical service is a therapeutic surgical procedure. There is no designated change to health service provision. There are a number of varied devices and technologies which are used during the alignment, fixation and stabilisation of bones in the wrist joint. According to the applicant the most common prostheses currently used for distal radial and intra-articular fractures are locking plate devices. These provide the best immediate stability, resistance against pull-out of screws and loss of fixation. Most surgical implant companies produce sets of implants that have the same basic structure but differ only in very slight plate modification. There is no difference between any of the plating systems on the market. The choice of plate design used is made according to surgeon preference. According to the applicant, all commonly available devices are TGA approved. Most implants described in the literature are available in Australia although they may be marketed under a different name. Currently, wires are rarely used for the treatment of wrist fractures, and external fixateurs are similarly only used in a few special indications. Bone morphogenic proteins are not commonly used for the treatment of fractures of the wrist, and its use is in general experimental, therefore their use is excluded from this DAP. Questions for the consultation: 1. Are there any devices which should not be considered a part of this proposal? For example, should some superseded or overly complex/unregistered devices which may be in the published literature be excluded? 2. Please provide ARTG numbers for relevant pins / wires / screws / plates / frames for external or internal fixation. 3. Please provide ARTG numbers for relevant marketable bone graft products. Patient population Proposed MBS listing The applicant proposes that five new items are needed to address specific intra-articular fractures of the distal radius, distal ulna, and of the ulna styloid (Table 2). The proposed items, covering the treatment of intra-articular fractures, are in addition to existing items for the treatment of distal 10 radius and ulna fractures. The use of more specific items would make the selection of item number for the treatment of these fractures more clinically relevant and more truly reflect the clinical practice. As a result of these new items, and to bring existing items in line with current clinical practice, the applicant has proposed changes to the exiting MBS items and fees (Table 3). The current items for treatment of distal radius and ulna fractures (47360, 47363, 47366, 47369, 47373, 47375) would be streamlined, mainly through the removal of the eponymous naming conventions that relate primarily to fracture appearance. There is no existing single item for internal fixation of an ulna styloid fracture where there is some distal radioulnar instability. The current item’s use would be 47366 (Radius or Ulna, distal end of, treatment of fracture) or 46345 (distal radioulnar joint, reconstruction or stabilisation of) or possibly both numbers. Together, the new items and changes to current item description and fees reflect services that are provided by GPs in an out-of hospital setting, and surgical procedures that would be conducted by specialists in a hospital setting. Table 2: Proposed MBS item descriptors for therapeutic procedures on the wrist MBS item Number MBS listing XXXX1 RADIUS, intra-articular fracture, distal end of, with or without ulna fracture, treatment by closed reduction (Anaes.) Fee: $312.42 XXXX2 RADIUS, intra-articular fracture, distal end of, with or without ulna fracture, treatment by open reduction and internal fixation (Anaes.) (Assist.) Fee: $676.92 XXXX3 ULNA, intra-articular fracture, distal end of, treatment by closed reduction (Anaes.) Fee: $260.35 XXXX4 ULNA, intra-articular fracture, distal end of, treatment by open reduction and internal fixation (Anaes.) (Assist.) Fee: $364.49 XXXX5 ULNA STYLOID, fracture of, associated with instability of the DRUJ, treatment of by open reduction and internal fixation, not associated with item 46345 (Anaes.) (Assist.) Fee: $364.49 MBS: Medicare Benefits Schedule Table 3: Proposed changes to existing MBS item descriptors for therapeutic procedures on the wrist MBS item Number MBS listing 47360 (XXXXA) RADIUS OR ULNA, distal end of, treatment of fracture of, by cast immobilisation, other than a service to which item 47363 or 47366 applies (Anaes.) Fee: yet to be determined 47363 (XXXXB) RADIUS OR ULNA, distal end of, treatment of fracture of, by closed reduction (Anaes.) Fee: yet to be determined 47366 (XXXXC) RADIUS OR ULNA, distal end of, treatment of fracture of, not involving joint surface, by open reduction (Anaes.) (Assist.) Fee: yet to be determined 47369 RADIUS, distal end of, treatment of Colles' or Smith's or Barton’s fracture of, not involving joint surface, by cast immobilisation, other than a service to which item 47372 or 47375 applies (Anaes.) Fee: $166.35 47372 RADIUS, distal end of, treatment of Colles' or Smith's or Barton’s fracture of, not involving joint surface, by closed reduction (Anaes.) Fee: $271.65 47375 RADIUS, distal end of, treatment of Colles' or Smith's or Barton’s fracture of, not involving joint surface, by open reduction (H) (Anaes.) (Assist.) Fee: $369.55 NOTE: Changes to current items shown in bold text. MBS: Medicare Benefits Schedule 11 The fees for all the proposed items for the purposes of the assessment and economic evaluation will be determined with the input of the ESC at a later date. An undisplaced intra-articular fracture can be treated with cast immobilisation and no reduction. Under the proposed items this service would be provided by XXXXA above. The treatment of a Colles’ fracture in paediatrics is provided by separate items (50508 and 50512 Appendix 1) that are not a part of the proposed changes. Question for consultation: 4. Why is there a proposed increase in fee for the three items (XXXA, XXXB, XXXC) which correspond to current MBS item numbers? 5. Do the eight proposed items more accurately reflect the range of clinical indications? 6. Do the eight proposed items more accurately reflect the range of complexity of techniques? 7. Do the eight proposed items reflect the range of wrist fracture procedures currently being undertaken across all specialties (e.g. regional surgeons, emergency physicians, general practitioners)? Clinical place for proposed intervention Wrist injuries can lead to significant problems. Complications from the injury itself can result in increased morbidity, with long-term functional impairment, pain and deformity (Handoll and Madhok 2008). In addition to soft tissue injury there can be injury to blood vessels, tendons and nerves. Median nerve dysfunction is a common complication. One major complication is reflex sympathetic dystrophy (RSD), also referred to as algodystrophy, Sudeck’s atrophy, complex regional pain syndrome and shoulder-hand syndrome. Serious cases of RSD require many months of therapy to alleviate symptoms (pain, tenderness, impairment of joint mobility, swelling, dystrophy, vasomotor instability) (Handoll et al 2006). Late complications include midcarpal instability and post-traumatic arthritis, which can occur several months or years after injury (Handoll and Madhok 2008). The accurate reduction of the joint surface to anatomical alignment is essential for preservation of function and minimisation of long-term disability. Appendix 2 shows data from the Australian Institute of Health and Welfare (AIHW) hospital data cubes. In 2009-10, there were 21,796 separations by principal diagnosis of fracture at hand and wrist level (not involving the radius and ulna), and 37,980 fractures of the forearm, including 22,887 at the lower end of the radius and 4,432 at the lower end of both the radius and ulna. The lower end of the ulna is not recorded separately. For the radius, 540 fractures are recorded at the lower end with volar angulation and intra-articular fracture. AIHW separation statistics by procedure show that in 2009-10 there were a total of 16,860 closed reduction of a fracture of the radius. Of these, 13,892 were of the distal radius; 2,058 were of the distal radius with internal fixation. There were a total of 10,486 open reduction of fracture of radius. Of these, 98 were at the distal radius; 9,001 were of the distal radius with internal fixation. 12 Similar data is available for the ulna. In 2009-10, there were a total of 3,356 closed reduction of fracture of the ulna or olecranon. Of these, 2,713 were of the distal ulna; 181 were of the distal ulna with internal fixation. There were a total of 3,403 open reduction of fracture of the ulna or olecranon. Of these, 65 were at the distal ulna; 1,075 were of the distal ulna with internal fixation. Fractures of the distal radius and ulna are the most common type of fractures in patients younger than 75 years of age (Abraham and Scott 2010). Australian epidemiological data show that among those aged 35 and older, age-adjusted Colles’ fracture incidence (per 10,000 per year) was 17 for females and 4 for males (Sanders et al 1999). This compared with 25 and nine respectively for hip fracture. The rate of Colles’ fracture increased in women from 35 to the over-90 age group, but did not increase in men except in the oldest age group (85+) (Sanders et al 1999). In a UK study, the incidence of distal forearm fracture was 36.8/10,000 person-years in women and 9.0/10,000 personyears in men (O’Neill et al 2001). In children, fractures of the distal radius and forearm are the most common skeletal injury requiring surgical care (Bae 2008). Children between 5-14 years of age have been shown to have the largest proportion (26%) of all hand and forearm fractures in the Unites States (Chung and Slipson 2001). For younger adults, injuries to the wrist area may commonly occur as a result of sports injuries, including throwing sports, tennis and golf (Brukner 1998). Almost 700,000 Australians (approximately 3%) are believed to have been diagnosed with osteoporosis (AIHW 2012). Fractures after minimal trauma are a hallmark of this condition. The applicant states that the population to benefit from fixation of intra-articular fractures would be younger and middle-aged adults who are subject to high energy trauma. These patients are often in their productive years and require accurate and stable fracture fixation to return them to employment and prevent subsequent degeneration and lost productivity. The elderly require accurate and stable fixation of their extra-articular fractures to minimise their period of incapacity and hence minimise their reliance on respite and temporary accommodation away from home. Epidemiological data has not been identified which shows the proportion of all patients with distal radius and distal ulna fractures that have these fractures located in intra-articular locations, or at the ulna styloid. Clinical management algorithm The clinical management algorithm for a fracture of the wrist (that is intra-articular or ulna styloid fracture, and/or instability) is shown in Figure 2a and 2b. Figure 2a shows the current pathway available for treatment of a wrist fracture, and Figure 2b shows the pathway including the proposed services. The criteria required for the use of the new procedures would be the radiological evidence of an intra-articular extension of a fracture of the distal radius or ulna and the presence of clinically relevant instability of the DRUJ with reference to a fracture of the ulna styloid. The difference for the new service is in the actual surgical technique, degree of difficulty, accuracy of preoperative assessment and intensity of the postoperative management. The actual degree of difficulty will be dependent on the clinical presentation of the fracture, and is likely to vary between patients. The assessment of an intra-articular fracture and its characterisation is important for preoperative 13 planning to help determine the implant required and the surgical approach. Whilst plain radiographs are adequate for an extra-articular fracture, a CT scan is usually required for accurate assessment and planning for an intra-articular fracture. The new services would be used in addition to the currently available interventions and MBS items. According to the applicant, the clinical pathway for the treatment of a patient with an intra-articular distal radius fracture would be: Assessment by examination and plain radiology. Referral to a specialist hand or orthopaedic surgeon. Reassessment of the nature of the fracture and CT scanning if necessary to properly characterise the fracture. Surgical reconstruction of the fracture. Postoperative review at one week, further review at two weeks to assess the reconstruction, and regular follow-up during the healing process for three months. Regular monitoring of wound healing, fracture union and soft tissue mobilisation with referral to hand therapy if the mobilisation process is inadequate. Possible removal of the fracture fixation at a later date if clinically indicated. The new clinical pathway involves the surgical technique changes required for reconstruction of a comminuted intra-articular fracture (that is, involving crushed or splintered bone). Issues that have guided the structure of the current algorithms include: An undisplaced intra-articular fracture can be treated by simple cast immobilisation. However, these fractures are unstable and the treatment may later change to open reduction and internal fixation. Peri-operative imaging could be used (by a specialist) for checking the accuracy of a closed reduction. Ligament injuries would be dealt with separately and are not considered in the below algorithms, or in the proposed item numbers. An external fixateur can be used in addition to internal fixation should the additional support be required. However, in current clinical practice the use of this combination is rare due to the quality of current internal fixateur devices. Question for the consultation: 8. Are the clinical algorithms appropriate? 14 Figure 2a: Clinical management algorithm for a fracture of the wrist, with current services Radiologically-confirmed wrist fracture, distal end of radius or ulna Notes: a with or without external fixation (wires) b with or without bone grafting, pins or plates c and/or MBS 46345 for more complex reconstruction and stabilisation NOTE: current items do not allow the provider to distinguish between different complexities of wrist fracture Requirement of reduction No Yes Colles’ Smith’s or Barton’s fracture b Closed reduction Open reduction Colles’ Smith’s or Barton’s fracture Colles’ Smith’s or Barton’s fracture No Yes No Yes No Yes Immobilisation/recovery Immobilisation/recovery Immobilisation/recovery Immobilisation/recovery Immobilisation/recovery Immobilisation/recovery MBS 47360 Mainly provided by GPs MBS 47369 Mainly provided by GPs MBS 47363 Specialists; some GPs MBS 47372 Provided by specialists MBS 47366c Provided by specialists MBS 47375 Provided by specialists Figure 2b: Clinical management algorithm for a fracture of the wrist, with proposed service Radiologically-confirmed wrist fracture, distal end of radius or ulna Notes: a with or without K-wires, or external fixation b with or without bone grafting, internal fixation or the application of an external fixateur c Is an intra-articular fracture present? with or without intra-operative radiology No Possible Extra-articular or non-displaced intra-articular fracture Requirement of reduction No Closed a,c reduction Immobilisation /recovery Combined 47360 and 47369 (XXXA) Distal intra-articular radius fracture with or without ulna facture Yes Immobilisation /recovery Combined 47363 and 47372 (XXXB) Open b,c reduction Closed a,c reduction Intra-articular fracture confirmed CT scan Open b,c reduction Distal intra-articular ulna fracture alone Ulna styloid fracture with Associated DRUJ instability Closed a,c reduction Open b,c reduction Open b,c reduction Immobilisation /recovery Immobilisation /recovery Immobilisation /recovery Immobilisation /recovery Immobilisation /recovery Immobilisation /recovery Combined 47366 and 47375 (XXXC) MBS XXX1 MBS XXX2 MBS XXX3 MBS XXX4 MBS XXX5 16 Comparator The applicant has provided the following six current MBS items as comparator procedures (Table 4). Note that MBS data shows that a majority of services for items 47360, 47369 and to a lesser extent 47363 are performed out of hospital by GPs. Table 4: Current MBS item descriptors for current and potential comparator procedures MBS item MBS listing Number MBS claims (Jun 2010 – Jul 2011)a 47360 RADIUS OR ULNA, distal end of, treatment of fracture of, by cast immobilisation, not being a service to which item 47363 or 47366 applies Multiple Services Rule (Anaes.) Fee: $129.40 Benefit: 75% = $97.05 85% = $110.00 13,100 47363 RADIUS OR ULNA, distal end of, treatment of fracture of, by closed reduction Multiple Services Rule (Anaes.) Fee: $193.90 Benefit: 75% = $145.45 85% = $164.85 1,027 47366 RADIUS OR ULNA, distal end of, treatment of fracture of, by open reduction Multiple Services Rule (Anaes.) (Assist.) Fee: $258.70 Benefit: 75% = $194.05 85% = $219.90 180 47369 RADIUS, distal end of, treatment of Colles', Smith's or Barton's fracture of, by cast immobilisation, not being a service to which item 47372 or 47375 applies Multiple Services Rule (Anaes.) Fee: $166.35 Benefit: 75% = $124.80 85% = $141.40 2,335 47372 RADIUS, distal end of, treatment of Colles', Smith's or Barton's fracture, by closed reduction Multiple Services Rule (Anaes.) Fee: $277.10 Benefit: 75% = $207.85 85% = $235.55 1,339 47375 RADIUS, distal end of, treatment of Colles', Smith's or Barton's fracture of, by open reduction Multiple Services Rule (Anaes.) (Assist.) Fee: $369.55 Benefit: 75% = $277.20 2,857 MBS: Medicare Benefits Schedule a Claims data retrieved June 26 2012 from: https://www.medicareaustralia.gov.au/statistics/mbs_item.shtml The comparator procedures do not refer to the explicit location of the fractures (that is intra-articular and ulna styloid). Therefore they do not reflect the increase in complexity of the treatment requirement in certain locations, which would involve the use of internal fixation and more detailed imaging, both before and during the procedure. Overall, the comparator is likely to be a simpler fracture repair, utilising less detailed imaging (both pre-and intra-operatively), with possibly less use of devices for internal fixation. The comparator procedure in the presence of distal radioulnar instability would be item 47366 and/or 46345 (distal radioulnar joint, reconstruction or stabilisation of). In summary there are three clinical comparator procedures: Cast immobilisation (no reduction) Closed reduction, cast immobilisation Open reduction, cast immobilisation Note: As stated by the applicant, there is no change in clinical approach between current and proposed services. There may be more peri- and post-operative imaging; however, these items are claimed separately to the proposed procedural services. Therefore the comparator services are identical to the proposed services at a clinical and therapeutic level. Questions for consultation: 9. The use of K wires to move bony fragments into place may be undertaken in closed reduction. Is this correct, or should the use of K wires be considered only as open reduction? 10. In the same manner, would the use of external fixateur wires be considered as part of a closed reduction? 11. Given that the proposal is to bring Medicare items in line with current clinical practice, the DAP assumes no pre-established difference between the ‘current’ approach (‘comparator) and the ‘proposed’ approach (intervention’). Is this appropriate? If not, which elements of clinical practice should be different in the before and after scenarios? It may be that no studies directly compare different types of procedures or techniques for no reduction, closed reduction, or open reduction in the different patient populations. Clinical claim The applicant wishes to bring MBS items for wrist fracture in line with current clinical practice, and to more accurately reflect the more complexity injuries which are not currently included on the MBS. The applicant claims that specific MBS items for intra-articular fracture of the distal radius, distal ulna, and fracture of the ulna styloid, will improve the treatment of these more complex fractures. This will in turn aid in the recovery and the long-term prognosis of the injury. In addition, existing MBS items do not account for the increased complexity of current clinical practice and are ambiguous. The accurate reduction and stable internal fixation of an intra-articular fracture of the distal radius has been shown in clinical and experimental studies over the past 15 years to significantly improve the outcome and reduce the morbidity following intra-articular fractures. The development of new techniques and implants has, however, made this aim more complex and involved with increased preoperative assessment, increased operating time and skill and more intense post-operative management. This increased effort has led to better outcomes when compared to older more traditional techniques, with fewer complications and hence fewer salvage procedures. The safety when performing these procedures is equivalent to existing procedures. The clinical benefits expected and reflected in published literature following accurate repair of intraarticular fractures are a more rapid return to work and activities of daily living, reduced risk for subsequent degenerative changes in the joint and the need for salvage surgery and hence lost function. These benefits are most obvious when seen in the target population of young active and productive patients. 18 Comparative safety versus comparator Table 5: Classification of an intervention for determination of economic evaluation to be presented Comparative effectiveness versus comparator Superior Non-inferior Inferior Net clinical benefit CEA/CUA Superior CEA/CUA CEA/CUA Neutral benefit CEA/CUA* Net harms None^ Non-inferior CEA/CUA CEA/CUA* None^ Net clinical benefit CEA/CUA Neutral benefit CEA/CUA* None^ None^ Net harms None^ Abbreviations: CEA = cost-effectiveness analysis; CUA = cost-utility analysis * May be reduced to cost-minimisation analysis. Cost-minimisation analysis should only be presented when the proposed service has been indisputably demonstrated to be no worse than its main comparator(s) in terms of both effectiveness and safety, so the difference between the service and the appropriate comparator can be reduced to a comparison of costs. In most cases, there will be some uncertainty around such a conclusion (i.e., the conclusion is often not indisputable). Therefore, when an assessment concludes that an intervention was no worse than a comparator, an assessment of the uncertainty around this conclusion should be provided by presentation of cost-effectiveness and/or cost-utility analyses. ^ No economic evaluation needs to be presented; MSAC is unlikely to recommend government subsidy of this intervention Inferior Outcomes and health care resources affected by introduction of proposed intervention Outcomes The applicant did not provide specific outcomes. Suggested outcomes are shown below. Primary effectiveness (from Handoll et al 2008): Patient functional assessment (including quality of life) Grip strength Range of movement Secondary effectiveness: Residual soft tissue swelling Pain Return to work, school or study Anatomical outcomes (radiological and imaging outcomes) Duration of the surgical procedure Resource use (hospital stay, number of outpatient visits, physiotherapy) Adverse events: Including but not limited to: Surgical damage to blood vessels, tendons or nerves Long-term pain Clicking Post-traumatic arthritis Residual finger stiffness Infection (pin or wire) Soft tissue injury or additional fractures from external fixation Swelling, dystrophy, vasomotor instability Reflex sympathetic dystrophy Malunion and loss of reduction Question for consultation: 12. The outcomes have been informed from recent Cochrane reviews in this topic area. What should the primary outcomes be? Are any changes needed to the effectiveness or safety outcomes? Health care resources The internal fixation of intra-articular fractures of the distal radius and ulna and extra articular fractures require the use of an assistant to help with exposure, reduction and fixation of these fractures. An anaesthetist and standard theatre nursing staff are required. Because of the complexity of these procedures and the need for accuracy, the use of intra-operative radiology is almost mandatory. As part of the preoperative assessment of patients with intra-articular fractures a CT scan would usually be required for accurate surgical planning. In the post-operative period it would be at times necessary to use the skills of a qualified hand therapist to assist in the rehabilitation of the hand and wrist after this injury and surgery. The assessment of an intra-articular fracture and its characterisation is important for preoperative planning to help determine the implant required and the surgical approach. Whilst plain radiographs are adequate for an extra-articular fracture, a CT scan is usually required for accurate assessment and planning for an intra-articular fracture. The healthcare resources delivered with the comparator are similar for the new procedures with perhaps less reliance on intra-operative radiology. At the moment it is unclear whether the resources required for cast immobilisation and closed reduction is different in the current and proposed settings. The healthcare resources have been grouped according to the following: Comparator 1: Cast immobilisation (no reduction) current Comparator 2: Closed reduction current Comparator 3: Open reduction current Intervention 1: Cast immobilisation (no reduction) proposed Intervention 2: Closed reduction proposed Intervention 3: Open reduction proposed 20 Issues to consider in terms of healthcare resources: According to the applicant, treatment of intra-articular fractures would involve the addition of a pre-operative CT scan, increased operating, anaesthetic and theatre time, the use of intraoperative radiology, together with perhaps a few more postoperative reviews and slightly longer therapy and rehabilitation. The internal fixation devices are the same as currently used for extra-articular fractures. Closed reduction involves the manipulation of the fracture, therefore this procedure requires anaesthesia. For the purposes of the assessment, it is acknowledged that the resources used for each comparator procedure is exactly the same as those for the paired intervention. Ligament repair would be undertaken as a separate procedure and is not under review. The applicant has advised that internal fixateurs would need to be removed at a rate of approximately 10%, due to infection of if the device rubs against tendons. There would be no difference in this rate between intra- and extra-articular fractures. Table 6: List of resources to be considered in the economic analysis Number of Disaggregated unit cost units of resource Setting in Proportion per relevant Provider of which of patients Other Private time Safety Total resource resource is receiving MBS govt health Patient horizon per nets* cost provided resource budget insurer patient receiving resource Resources provided to identify eligible population should intervention be made available as proposed GP GP rooms - Consultation (15-20 min) Radiologist - X-ray - Consultation (15-20 Specialist Consultant’s rooms min) - CT scan Resources provided to deliver comparator 1 – cast immobilisation GP GP rooms - Cast immobilisation - Cast immobilisation Specialist Consultant’s rooms - Post-cast X ray - 1 week X ray - 6 week X ray Resources provided in association with comparator 1 (e.g., pre-treatments, co-administered interventions, resources used to monitor or in follow-up, resources used in management of adverse events, resources used for treatment of down-stream conditions) Hand Rooms - Rehabilitation Therapist - Revision surgery - MBS 47930 Resources provided to deliver comparator 2 – closed reduction GP GP rooms - Closed reduction and cast immobilisation Specialist Consultant’s - Closed reduction rooms and cast immobilisation - X-ray (check accuracy of the reduction once the 21 Setting in Proportion Provider of which of patients resource resource is receiving provided resource Number of units of resource per relevant time horizon per patient receiving resource Disaggregated unit cost MBS Safety nets* Other govt budget Private health insurer Patient cast has been applied) - External fixation device - General anaesthetic - Local anaesthetic - Post-cast X ray - 1 week X ray - 6 week X ray - Additional X-ray (due to swelling) Resources provided in association with comparator 2 Hand Rooms - Rehabilitation therapist - Revision surgery - MBS 47930 Resources provided to deliver comparator 3 – open reduction - Hospital admission (overnight) Specialist Central or - Surgery regional hospital Assistant? - Surgery (? X min) Nurse - Surgery Anaesthetist - Surgery - Intra-operative Xray - External fixation devices - Internal fixation devices - Synthetic bone grafting - Autologous bone harvesting 47726 - Autologous bone harvesting 47729 - Arthroscopy - X-ray (check accuracy of the reduction once the cast has been applied) - Post-cast X ray - 1 week X ray - 6 week X ray - Additional X-ray (due to swelling) Resources provided in association with comparator 3 Hand Rooms - Rehabilitation therapist Nurse - Suture removal Specialist - Removal of the 22 Total cost Setting in Proportion Provider of which of patients resource resource is receiving provided resource Number of units of resource per relevant time horizon per patient receiving resource Disaggregated unit cost MBS Safety nets* Other govt budget Private health insurer Patient fracture fixation - Revision surgery - MBS 47930 Resources provided to deliver proposed intervention 1 – cast immobilisation GP GP rooms - Cast immobilisation - Cast immobilisation Specialist Consultant’s rooms - Post-cast X-ray - 1 week X-ray - 6 week X ray Resources provided in association with proposed intervention 1 Hand Rooms - Rehabilitation therapist - Revision surgery - MBS 47930 Resources provided to deliver proposed intervention 2 – closed reduction - CT scan GP GP rooms - Closed reduction and cast immobilisation Specialist Consultant’s - Closed reduction rooms and cast immobilisation - X-ray (check accuracy of the reduction once the cast has been applied) - External fixation device - General anaesthetic - Local anaesthetic - Post-cast X ray - 1 week X ray - 6 week X ray - Additional X-ray (due to swelling) Resources provided in association with proposed intervention 2 Hand Rooms - Rehabilitation therapist - Revision surgery - MBS 47930 Resources provided to deliver proposed intervention 3 – open reduction - CT scan - Hospital admission (overnight) Specialist - Surgery (90-120 min) Assistant - Surgery Nurse - Surgery Anaesthetist - Surgery - Intra-operative xray 23 Total cost Setting in Proportion Provider of which of patients resource resource is receiving provided resource Number of units of resource per relevant time horizon per patient receiving resource Disaggregated unit cost MBS Safety nets* Other govt budget Private health insurer Patient - External fixation devices - Internal fixation devices - Synthetic bone grafting - Autologous bone harvesting 47726 - Autologous bone harvesting 47729 - Arthroscopy - X-ray (check accuracy of the reduction once the cast has been applied) - Post-cast X ray - 1 week X ray - 6 week X ray - Additional X-ray (due to swelling) Resources provided in association with proposed intervention Nurse Rooms - Suture removal Hand - Rehabilitation therapist Specialist - Removal of the fracture fixation - Revision surgery - MBS 47930 Clinical input and information from the assessment phase will be required to confirm the proportion of units for the current and proposed procedures. Other potentially relevant healthcare resources related to fracture repair such as day theatre usage, attending nursing staff, potential follow-up procedures (plaster casts, analgesics) will be common across paired procedures. Question for consultation: 13. In terms of other associated resources (rehabilitation, physiotherapy, any other services, also time off work) would these be similar for each paired comparator and intervention? Proposed structure of economic evaluation (decision-analytic) Due to the wide proposed changes to both new and existing items, there are three PICO tables to account for all interventions and populations of interest (Table 7 to Table 9). Due to the difficulties in 24 Total cost accurately defining, both clinically and for the purposes of the review, the specific intervention and comparator these will be kept broad. There are three clinical procedures as interventions: Cast immobilisation (no reduction) Closed reduction, cast immobilisation Open reduction, cast immobilisation There are three clinical comparator procedures: Cast immobilisation (no reduction) Closed reduction, cast immobilisation Open reduction, cast immobilisation Table 7: Suggested summary of extended PICO to define research question that assessment will investigate: cast immobilisation of fracture of the wrist Patients Intervention Comparator Patients with a fracture of the wrist Subgroups: Fracture of the distal radius or ulna not involving the joint surface Fracture of the distal radius or ulna involving the joint surface, undisplaced Cast immobilisation (this could be undertaken by a GP or by a specialist, possibly after a CT scan) Any other intervention. NB there is likely to be no comparator for this population. Outcomes to be assessed Primary outcomes: Patient functional assessment (including quality of life) Grip strength Range of movement Secondary outcomes: TBC (please see above) Safety outcomes: All safety issues and adverse events (please see above). Healthcare resources to be considered The healthcare resources are similar in both current and future situations. Table 8: Suggested summary of extended PICO to define research question that assessment will investigate: closed reduction of fracture of wrist Patients Intervention Comparator Patients with a fracture of the wrist Subgroups: Fracture of the distal radius or ulna not involving the joint surface Intra-articular fracture of the distal radius Intra-articular fracture of the distal ulna Traction and manipulation, possible use of external fixation; cast immobilisation (this could be undertaken by a GP or by a specialist with a requirement for anaesthesia, possibly after a CT scan) Any other conservative intervention. Outcomes to be assessed Primary outcomes: Patient functional assessment (including quality of life) Grip strength Range of movement Secondary outcomes: TBC (please see above) Safety outcomes: All safety issues and adverse events (please see above). Healthcare resources to be considered The healthcare resources are similar in both current and future situations. Additional resources may include CT scan and external fixation. 25 Table 9: Suggested summary of extended PICO to define research question that assessment will investigate: open reduction of fracture of the wrist Patients Intervention Comparator Patients with a fracture of the wrist Subgroups: Fracture of the distal radius or ulna not involving the joint surface Intra-articular fracture of the distal radius Intra-articular fracture of the distal ulna Fracture of the ulna styloid with associated DRUJ instability Surgical intervention, including: - CT imaging - Intra-operative imaging - Open reduction - Internal fixation with pins/screws/plates - Any other intervention required due to possible DRUJ instability Any other conservative or surgical intervention. Outcomes to be assessed Primary outcomes: Patient functional assessment (including quality of life) Grip strength Range of movement Secondary outcomes: TBC (please see above) Safety outcomes: All safety issues and adverse events (please see above). Healthcare resources to be considered The healthcare resources are similar in both current and future situations. Additional resources may include CT scan, external fixation, internal fixation, intraoperative radiology. Clinical research questions for public funding: Due to the variety of wrist fractures and the variety of procedures under investigation, it is proposed to separate the clinical questions according to the complexity of wrist fracture – whether it involves the intra-articular surfaces or the ulna styloid, or if it does not involve the joint surface. The questions should align to the populations as represented in the proposed MBS items. PASC acknowledges that there may be no comparative evidence for some or all of the following clinical questions. Safety, effectiveness and cost information may only be available in absolute terms, obtained from case series and cohort studies. In this case, the applicability and methodological quality of these level IV studies should be comprehensively explained. Clinical research questions for wrist fractures, no reduction a) What is the safety of current clinical practice cast immobilisation compared with alternative methods for fractures of the wrist which do not require reduction? b) What is the effectiveness of current clinical practice cast immobilisation compared with alternative methods for fractures of the wrist which do not require reduction? c) What is the cost-effectiveness of current clinical practice cast immobilisation compared with alternative methods for fractures of the wrist which do not require reduction? Separate for fractures of the distal radius or ulna not involving the joint surface, and fractures of the distal radius or ulna involving the joint surface but undisplaced. Clinical research questions for wrist fractures, closed reduction d) What is the safety of current clinical practice closed reduction repair compared with alternative methods for fractures of the wrist? e) What is the effectiveness of current clinical practice closed reduction repair compared with alternative methods for fractures of the wrist? 26 f) What is the cost-effectiveness of current clinical practice closed reduction repair compared with alternative methods for fractures of the wrist? Separate for fracture of the distal radius or ulna not involving the joint surface; intra-articular fracture of the distal radius with or without ulna; intra-articular fracture of the distal ulna. Clinical research questions for wrist fractures, open reduction g) What is the safety of current clinical practice open reduction repair compared with alternative methods for fractures of the wrist? h) What is the effectiveness of current clinical practice open reduction repair compared with alternative methods for fractures of the wrist? i) What is the cost-effectiveness of current clinical practice open reduction repair compared with alternative methods for fractures of the wrist? Separate for fracture of the distal radius or ulna not involving the joint surface; intra-articular fracture of the distal radius with or without ulna; intra-articular fracture of the distal ulna; fracture of the ulna styloid with associated DRUJ instability. In terms of fractures of the ulna styloid involving instability of the DRUJ, it is important to establish the relationship between new item XXXX6 and the existing item 46345 which may currently be used where reconstruction or stabilisation of the DRUJ is required. Decision analytic diagram The decision analytic diagram(s) need to account for the following variables: Whether the fracture is intra-articular or extra-articular Whether the fracture involves the distal ulna, the distal radius or the ulna styloid Whether the procedure involves no reduction, closed reduction or open reduction Whether the procedure involves external fixation, internal fixation, bone graft (autologous or synthetic), detailed CT scan, intra-operative radiology New and existing MBS numbers should be considered. 27 References Abraham, M. K. and S. Scott (2010). "The emergent evaluation and treatment of hand and wrist injuries." Emerg Med Clin N Am 28: 789-809. Australian Institute of Health and Welfare 2012. Australia’s health 2012. Australia’s health series no.13. Cat. no. AUS 156. Canberra: AIHW. Bae, D. S. (2008). "Pediatric distal radius and forearm fractures." J Hand Surg Am 33(10): 1911-1923. Brukner, P. (1998). "Stress fractures of the upper limb." Sports Med 26(6): 415-424. Chung, K. C. and S. V. Spilson (2001). "The frequency and epidemiology of hand and forearm fractures in the United States." J Hand Surg Am 26A: 908-915. Handoll, H. H., J. S. Huntley, et al. (2008). "Different methods of external fixation for treating distal radial fractures in adults." Cochrane Database Syst Rev(1): CD006522. Handoll, H. H. and R. Madhok (2008e). "Conservative interventions for treating distal radial fractures in adults." Cochrane Database Syst Rev(2): CD000314. Handoll, H. H., R. Madhok, et al. (2006). "Rehabilitation for distal radial fractures in adults." Cochrane Database Syst Rev(3): CD003324. Kijima, Y. and S. F. Viegas (2009). "Wrist anatomy and biomechanics." J Hand Surg Am 34A: 15551563. O'Neill, T. W., C. Cooper, et al. (2001). "Incidence of distal forearm fracture in British men and women." Osteoporosis Int 12: 555-558. Sanders, K. M., E. Seeman, et al. (1999). "Age- and gender-specific date of fractures in Australia: A population-based study." Osteoporosis Int 10: 240-247. Schmittenbecher, P. P. (2005). "What must we respect in articular fractures in childhood?" Injury 36: S-A35-S-A43. 28 Appendix 1: Information from the MBS Table 10: Current MBS item descriptors for relevant procedures on the wrist MBS item MBS listing Number MBS claims (Jun 2010 – Jul 2011)a 46345 DISTAL RADIOULNAR JOINT, reconstruction or stabilisation of, including fusion, or ligamentous arthroplasty and excision of distal ulna, when performed Multiple Services Rule (Anaes.) (Assist.) Fee: $553.55 Benefit: 75% = $415.20 106 47348 CARPUS (excluding scaphoid), treatment of fracture of, not being a service to which item 47351 applies Multiple Services Rule (Anaes.) Fee: $92.25 Benefit: 75% = $69.20 85% = $78.45 683 47351 CARPUS (excluding scaphoid), treatment of fracture of, by open reduction Multiple Services Rule (Anaes.) Fee: $231.10 Benefit: 75% = $173.35 85% = $196.45 43 47354 CARPAL SCAPHOID, treatment of fracture of, not being a service to which item 47357 applies Multiple Services Rule (Anaes.) Fee: $166.35 Benefit: 75% = $124.80 85% = $141.40 2,685 47357 CARPAL SCAPHOID, treatment of fracture of, by open reduction Multiple Services Rule (Anaes.) (Assist.) Fee: $369.55 Benefit: 75% = $277.20 85% = $314.15 324 47360 RADIUS OR ULNA, distal end of, treatment of fracture of, by cast immobilisation, not being a service to which item 47363 or 47366 applies Multiple Services Rule (Anaes.) Fee: $129.40 Benefit: 75% = $97.05 85% = $110.00 13,100 47363 RADIUS OR ULNA, distal end of, treatment of fracture of, by closed reduction Multiple Services Rule (Anaes.) Fee: $193.90 Benefit: 75% = $145.45 85% = $164.85 1,027 47366 RADIUS OR ULNA, distal end of, treatment of fracture of, by open reduction Multiple Services Rule (Anaes.) (Assist.) Fee: $258.70 Benefit: 75% = $194.05 85% = $219.90 180 47369 RADIUS, distal end of, treatment of Colles', Smith's or Barton's fracture of, by cast immobilisation, not being a service to which item 47372 or 47375 applies Multiple Services Rule (Anaes.) Fee: $166.35 Benefit: 75% = $124.80 85% = $141.40 2,335 47372 RADIUS, distal end of, treatment of Colles', Smith's or Barton's fracture, by closed reduction Multiple Services Rule (Anaes.) Fee: $277.10 Benefit: 75% = $207.85 85% = $235.55 1,398 47375 RADIUS, distal end of, treatment of Colles', Smith's or Barton's fracture of, by open reduction Multiple Services Rule (Anaes.) (Assist.) Fee: $369.55 Benefit: 75% = $277.20 2,857 29 MBS item MBS listing Number MBS claims (Jun 2010 – Jul 2011)a 47726 BONE GRAFT, harvesting of, via separate incision, in conjunction with another service autogenous - small quantity Multiple Services Rule (Anaes.) Fee: $138.60 Benefit: 75% = $103.95 983 47729 BONE GRAFT, harvesting of, via separate incision, in conjunction with another service autogenous - large quantity Multiple Services Rule (Anaes.) Fee: $231.10 Benefit: 75% = $173.35 2,168 47930 PLATE, ROD OR NAIL AND ASSOCIATED WIRES, PINS OR SCREWS, 1 or more of, all of which were inserted for internal fixation purposes, removal of, not being a service associated with a service to which item 47924 or 47927 applies - per bone Multiple Services Rule (Anaes.) (Assist.) Fee: $258.70 Benefit: 75% = $194.05 6,664 49215 WRIST, reconstruction of, including repair of single or multiple ligaments or capsules, including associated arthrotomy Multiple Services Rule (Anaes.) (Assist.) Fee: $637.60 Benefit: 75% = $478.20 (See para T8.120 of explanatory notes to this Category) 677 50106 JOINT, stabilisation of, involving 1 or more of: repair of capsule, repair of ligament or internal fixation, not being a service to which another item in this Group applies Multiple Services Rule (Anaes.) (Assist.) Fee: $461.90 Benefit: 75% = $346.45 3,869 50508 RADIUS, distal end of, with open growth plate, treatment of Colles', Smith's or Barton's fracture, by closed reduction Multiple Services Rule (Anaes.) Fee: $387.90 Benefit: 75% = $290.95 85% = $329.75 (See para T8.122, T8.123 of explanatory notes to this Category) 613 50512 RADIUS, distal end of, with open growth plate, treatment of Colles', Smith's or Barton's fracture of, by open reduction Multiple Services Rule (Anaes.) (Assist.) Fee: $517.45 Benefit: 75% = $388.10 (See para T8.122, T8.123 of explanatory notes to this Category) 83 56619 Category 5 - DIAGNOSTIC IMAGING SERVICES COMPUTED TOMOGRAPHY - scan of extremities, 1 or more regions without intravenous contrast medium, payable once only whether 1 or more attendances are required to complete the service (R) (K) (Anaes.) Bulk bill incentive Fee: $220.00 Benefit: 75% = $165.00 85% = $187.00 (See para DIQ of explanatory notes to this Category) 56625 Category 5 - DIAGNOSTIC IMAGING SERVICES COMPUTED TOMOGRAPHY - scan of extremities, 1 or more regions with intravenous contrast medium and with any scans of extremities prior to intravenous contrast injection, when undertaken; only 1 benefit is payable whether 1 or more attendances are required to complete the service (R) (K) (Anaes.) Bulk bill incentive Fee: $334.65 Benefit: 75% = $251.00 85% = $284.50 (See para DIQ of explanatory notes to this Category) 2,532 55800 Category 5 - DIAGNOSTIC IMAGING SERVICES HAND OR WRIST, 1 or both sides, ultrasound scan of, where: (a) the service is not associated with a service to which an item in Subgroups 2 or 3 of this Group applies; and (b) the referring practitioner is not a member of a group of practitioners of which the providing practitioner is a member (R) Bulk bill incentive Fee: $109.10 Benefit: 75% = $81.85 85% = $92.75 (See para DIQ of explanatory notes to this Category) 88,836 57506 Category 5 - DIAGNOSTIC IMAGING SERVICES HAND, WRIST, FOREARM, ELBOW OR HUMERUS (NR) Bulk bill incentive Fee: $29.75 Benefit: 75% = $22.35 85% = $25.30 (See para DIQ of explanatory notes to this Category) 17,644 57509 Category 5 - DIAGNOSTIC IMAGING SERVICES HAND, WRIST, FOREARM, ELBOW OR HUMERUS (R) Bulk bill incentive Fee: $39.75 Benefit: 75% = $29.85 85% = $33.80 (See para DIQ of explanatory notes to this Category) 736,604 101,347 30 MBS item MBS listing Number MBS claims (Jun 2010 – Jul 2011)a 57512 Category 5 - DIAGNOSTIC IMAGING SERVICES HAND AND WRIST OR HAND, WRIST AND FOREARM OR FOREARM AND ELBOW OR ELBOW AND HUMERUS (NR) Bulk bill incentive Fee: $40.50 Benefit: 75% = $30.40 85% = $34.45 (See para DIQ of explanatory notes to this Category) 2,986 57515 Category 5 - DIAGNOSTIC IMAGING SERVICES HAND AND WRIST OR HAND, WRIST AND FOREARM OR FOREARM AND ELBOW OR ELBOW AND HUMERUS (R) Bulk bill incentive Fee: $54.00 Benefit: 75% = $40.50 85% = $45.90 (See para DIQ of explanatory notes to this Category) 81,103 63337 Category 5 - DIAGNOSTIC IMAGING SERVICES - derangement of wrist and/or hand or its supporting structures (R) (Contrast) Bulk bill incentive (Anaes.) Fee: $448.00 Benefit: 75% = $336.00 85% = $380.80 (See para DIQ of explanatory notes to this Category) 10,233 MBS: Medicare Benefits Schedule a Claims data retrieved June 26 2012 from: https://www.medicareaustralia.gov.au/statistics/mbs_item.shtml Figure 3: Services for MBS item 47360 in 2010-2011 shown according to age and gender 8000 Number of services, 47360 7000 6000 5000 4000 Female 3000 Male Total 2000 1000 0 0 to 4 5 to 15 to 25 to 35 to 45 to 55 to 65 to 75 to 85+ 14 24 34 44 54 64 74 84 Age range 31 Figure 4: Services for MBS item 47363 in 2010-2011 shown according to age and gender 500 Number of services, 47363 450 400 350 300 250 Female 200 Male 150 Total 100 50 0 0 to 4 5 to 15 to 25 to 35 to 45 to 55 to 65 to 75 to 85+ 14 24 34 44 54 64 74 84 Age range Figure 5: Services for MBS item 47366 in 2010-2011 shown according to age and gender Number of services, 47366 35 30 25 20 Female 15 Male 10 Total 5 0 0 to 4 5 to 14 15 to 25 to 35 to 45 to 55 to 65 to 75 to 24 34 44 54 64 74 84 85+ Age range 32 Figure 6: Services for MBS item 47369 in 2010-2011 shown according to age and gender 1000 Number of services, 47369 900 800 700 600 500 Female 400 Male 300 Total 200 100 0 0 to 4 5 to 15 to 25 to 35 to 45 to 55 to 65 to 75 to 85+ 14 24 34 44 54 64 74 84 Age range Figure 7: Services for MBS item 47372 in 2010-2011 shown according to age and gender Number of services, 47372 250 200 150 Female 100 Male Total 50 0 0 to 4 5 to 15 to 25 to 35 to 45 to 55 to 65 to 75 to 85+ 14 24 34 44 54 64 74 84 Age range 33 Figure 8: Services for MBS item 47375 in 2010-2011 shown according to age and gender Number of services, 47375 800 700 600 500 400 Female 300 Male 200 Total 100 0 0 to 4 5 to 15 to 25 to 35 to 45 to 55 to 65 to 75 to 85+ 14 24 34 44 54 64 74 84 Age range 34 Appendix 2: Information from the AIHW Table 11: AIHW separation statistics by principal diagnosis, fracture at wrist and hand level (S62) ICD-10AM S62 Description AIHW separations AIHW separations 2008-09a 2009-10a Fracture at wrist and hand level 21,301 21,796 S62.0 Fracture of navicular (scaphoid) bone of hand 1,229 1,185 S62.1 Fracture of other carpal bone(s) 290 301 S62.2 Fracture of first metacarpal bone 1,458 1,487 S62.3 Fracture of other metacarpal bone 6,305 6,268 S62.4 Multiple fractures of metacarpal bones 525 546 S62.5 Fracture of thumb 1,899 2,001 S62.6 Fracture of other finger 9,064 9,522 S62.7 Multiple fractures of fingers 139 140 S62.8 Fracture of other and unspecified parts of wrist and hand 392 346 AIHW: Australian Institute of Health and Welfare ICD: International Classification of Diseases a Separation data retrieved June 26 2012 from: http://www.aihw.gov.au/hospitals-data/ Table 12: AIHW separation statistics by principal diagnosis, fracture of forearm (S52) ICD-10AM S52 Description AIHW separations AIHW separations 2008-09a 2009-10a Fracture of forearm 37,222 37,980 S52.0 Fracture of upper end of ulna 2,258 2,239 S52.1 Fracture of upper end of radius 1,816 1,873 S52.2 Fracture of shaft of ulna 980 942 S52.3 Fracture of shaft of radius 1,423 1,343 S52.4 Fracture of shafts of both radius and ulna 3,119 3,196 S52.5 Fracture of lower end of radius 22,253 22,887 S52.6 Fracture of lower end of both radius and ulna 4,309b 4,432b S52.7 Multiple fractures of forearm 469 518 S52.8 Fracture of other parts of forearm 475 487 S52.9 Fracture of forearm, part unspecified 93 63 AIHW: Australian Institute of Health and Welfare ICD: International Classification of Diseases a Separation data retrieved June 26 2012 from: http://www.aihw.gov.au/hospitals-data/ b S52.6 is not specified further 35 Table 13: AIHW separation statistics by principal diagnosis, fracture of lower end of radius (S52.5) ICD-10AM Description AIHW separations AIHW separations 2008-09a 2009-10a S52.5 Fracture of lower end of radius 22,253 22,887 S52.50 Fracture of lower end of radius, unspecified 7,076 7,350 S52.51 Fracture of lower end of radius with dorsal angulation 11,392 11,782 S52.52 Fracture of lower end of radius with volar angulation 1,182 1,083 S52.53 Fracture of lower end of radius with volar angulation and intra-articular fracture S52.59 Other and multiple fractures of lower end of radius 533 540 2,070 2,132 AIHW: Australian Institute of Health and Welfare ICD: International Classification of Diseases a Separation data retrieved June 26 2012 from: http://www.aihw.gov.au/hospitals-data/ Table 14: AIHW separation statistics by procedure, procedures on musculoskeletal system (XV) ICD block Description number 1421-1438 Forearm AIHW separations AIHW separations 2008-09a 2009-10a 40,709 42,537 1421 Immobilisation of fracture of shaft and distal radius or ulna 409 459 1423 Incision of fascia of forearm 328 294 1424 Incision of radius or ulna 977 933 1425 Other incision procedures on forearm 192 191 1426 Excision procedures on forearm 1,391 1,432 1427 Closed reduction of fracture of radius 16,702 16,860 1428 Closed reduction of fracture of ulna or olecranon 2,635 3,356 1429 Open reduction of fracture of radius 9,775 10,486 1430 Open reduction of fracture of ulna or olecranon 3,258 3,403 1431 Reduction of fracture of shaft of radius and ulna 3,297 3,300 1432 Open reduction of fracture of shaft of radius or ulna with dislocation 185 181 1433 Reduction of dislocation of shaft of radius or ulna 118 107 1434 Reduction of separated epiphysis of radius or ulna 1435 Bone graft to forearm 1436 1438 1 6 1,433 1,520 Other repair procedures on forearm 4 4 Other procedures on forearm 4 5 AIHW: Australian Institute of Health and Welfare ICD: International Classification of Diseases a Separation data retrieved June 26 2012 from: http://www.aihw.gov.au/hospitals-data/ 36 Table 15: AIHW separation statistics by procedure, 1428 closed reduction of fracture of ulna or olecranon ICD procedure code Description AIHW separations AIHW separations 2008-09a 2009-10a 47363-01 Closed reduction of fracture of distal ulna 2,023 2,713 47363-03 Closed reduction of fracture of distal ulna with internal fixation 131 181 47381-01 Closed reduction of fracture of shaft of ulna 192 170 47381-03 Closed reduction of fracture of shaft of ulna with internal fixation 32 29 47385-01 Closed reduction of fracture of shaft of ulna with dislocation 74 61 47385-03 Closed reduction of fracture of shaft of ulna with dislocation and internal fixation 10 11 47396-00 Closed reduction of fracture of olecranon 73 88 47396-01 Closed reduction of fracture of olecranon with internal fixation 100 103 AIHW: Australian Institute of Health and Welfare ICD: International Classification of Diseases a Separation data retrieved June 26 2012 from: http://www.aihw.gov.au/hospitals-data/ Table 16: AIHW separation statistics by procedure, 1430 open reduction of fracture of ulna or olecranon ICD procedure number Description AIHW separations AIHW separations 2008-09a 2009-10a 47366-01 Open reduction of fracture of distal ulna 40 65 47366-03 Open reduction of fracture of distal ulna with internal fixation 940 1,075 47384-01 Open reduction of fracture of shaft of ulna 25 25 47384-03 Open reduction of fracture of shaft of ulna with internal fixation 577 584 47399-00 Open reduction of fracture of olecranon 25 24 47399-01 Open reduction of fracture of olecranon with internal fixation 1,558 1,536 47402-00 Open reduction of fracture of olecranon with partial ostectomy of olecranon fragment 12 16 47402-01 Open reduction of fracture of olecranon with partial ostectomy of olecranon fragment and internal fixation 81 78 AIHW: Australian Institute of Health and Welfare ICD: International Classification of Diseases a Separation data retrieved June 26 2012 from: http://www.aihw.gov.au/hospitals-data/ 37 Table 17: AIHW separation statistics by procedure, 1427 closed reduction of fracture of radius ICD procedure code Description AIHW separations AIHW separations 2008-09a 2009-10a 47363-00 Closed reduction of fracture of distal radius 13,557 13,892 47363-02 Closed reduction of fracture of distal radius with internal fixation 2,280 2,058 47381-00 Closed reduction of fracture of shaft of radius 435 468 47381-02 Closed reduction of fracture of shaft of radius with internal fixation 39 32 47385-00 Closed reduction of fracture of shaft of radius with dislocation 34 52 47385-02 Closed reduction of fracture of shaft of radius with dislocation and internal fixation 7 6 47405-00 Closed reduction of fracture of radial head or neck 283 284 47405-01 Closed reduction of fracture of radial head or neck with internal fixation 67 68 AIHW: Australian Institute of Health and Welfare ICD: International Classification of Diseases a Separation data retrieved June 26 2012 from: http://www.aihw.gov.au/hospitals-data/ Table 18: AIHW separation statistics by procedure, 1429 open reduction of fracture of radius ICD procedure number Description AIHW separations AIHW separations 2008-09a 2009-10a 47366-00 Open reduction of fracture of distal radius 47366-02 Open reduction of fracture of distal radius with internal fixation 47384-00 Open reduction of fracture of shaft of radius 40 27 47384-02 Open reduction of fracture of shaft of radius with internal fixation 465 504 47408-00 Open reduction of fracture of radial head or neck 54 49 47408-01 Open reduction of fracture of radial head or neck with internal fixation 770 807 137 98 8,309 9,001 AIHW: Australian Institute of Health and Welfare ICD: International Classification of Diseases a Separation data retrieved June 26 2012 from: http://www.aihw.gov.au/hospitals-data/ 38